Separator.



PATENTED FEB. 13, 1906.

H. M. HARDGROVE.

SEPARATOR.

APPLICATION FILED APR. 3

2 SHEETS-SHEET 1.

WITNESSES aim/mm;

PATENTED FEB. 13, 1906.

H. M. HARDGROVB.

SEPARATOR.

APPLICATION FILED APR. 3, 1905.

2 SHEETS-SHEET 2.

ATTORNEYJ:

UNITED STATES PATENT ()FFE 1E.

HENRY M. HARDGROVE,

S E PA R No. 812,340. Specification of Letters Patent. Patented Feb. 13,1906.

Application filed April 3, 1905. Serial No. 253,566.

To all whom, it may concern.-

Be it known that I, HENRY M. HARD- GROVE, a citizen of the UnitedStates, residing at Madison, county of Dane, and State of Wisconsin,have invented new and useful Improvements in Separators, of which thefollowing is a specification.

My invention relates to improvements in separators forthreshingmachines, and pertains especially to that class of separatorsin which the straw is advanced after the threshing operation by a seriesof reciprocating toothed bars connected with oppositely-vibrating andsubstantially parallel frames.

The object of my invention is to provide means, first, for economizingspace in the construction of the separator by bringing the frames intoclose proximity to each other; second, to provide means for adjustingthe shaking-bars at various angles in accordance with the character ofthe material, and, third, to provide a form of beater which will notclog in the straw, but which will act cooperatively with theshaking-bars in separating the grain.

In the following description reference is had to the accompanyingdrawings, in which Figure 1 is a side view of my invention with portionsof the frames broken away. Fig. 2 is a plan view and Fig. 3 is a sideview, of one of the frames.

Like parts are identified by the same reference characters throughoutthe several views.

1 is the stationary frame of the separator. 2 and 3 are movable orvibratory frames, which are supported from the main frame 1 by means ofcross-shafts 4 and 5, respectively, which are each provided with arms 6and 7, pivotally connected with the respective frames 2 and 3. Avibratory motion is communicated to the frames from any suitable sourceof power by means of a belt 9, pulley 10, shaft 11, eccentric 12,eccentric-arm 13, and a crank 14, connected with the shaft 4, theconnection being made in such a manner that the crank 14 will beoscillated and the frames alternately lifted upwardly and rearwardly,one frame being depressed while the other frame is being lifted and thetwo frames being brought into close proximity, if not actual contact, atthe limit of the stroke in one direction.

Each of the frames is provided with a series of bars 17, which projectupwardly and rearwardly from a cross-bar 18 and are supported from theframe near their rear ends by links 19, slotted at 20 and adjustablyconnected with the corresponding frame at 21. by means of a bolt passingthrough said slot. A cross-rod 23, extending through apertures in thebars 17 is preferably used to connect the links 19 with the bars. Theupper surfaces of the bars are preferably notched to form a series ofteeth 25. The lower surfaces are similarly notched and provided with aseries of cross-slats 26. The notches are so formed that the adjacentedges of the cross-slats will be somewhat separated vertically to permitthe grain to pass between them. The upper rear ends of the bars 17 arewithout cross-slats and arranged to project over the lower front ends ofsimilar bars in the other vibratory frame, whereby the straw in passingfrom one set of bars to the next is deposited beyond the ends of thebars in the succeeding set.

The bars 17 of one set are preferably arranged in pairs, as shown in thecentral portion of Fig. 2, and a cross-shaft 30, extending underneaththe central portions of these bars, is provided with a series ofrectangular plates 31, each of which projects upwardly in one of thespaces between the bars composing one of said pairs of bars, thecross-slats 26 being cut away to provide space for the plates tooperate. These plates 31 are of such dimen sions that the corners willbe exposed suc-. cessively above the bars when the plates are rotated,and they will project for a greater distance abovethe bars when theframe from which these bars are supported is depressed, for the shaft 30is mounted in suitable bearings on the stationary frame. The shaft 30 islocated sufliciently below the pairs of bars 17 so that only the cornerportions of the plate 31 will project above the bars, except when saidbars are depressed to their fullest extent. Owing to the rectangularshape of the plates, the descending rear edges will leave the straw in adirection substantially at right angles to the upper surface of the barsand will therefore have no tendency to catch in the straw and draw itbetween the bars.

In the construction shown the shaft 30 is located above the uppervibratory frame, and the bars which are arranged in pairs are mountedupon said upper frame. With this arrangement the shaft 30 will notinterfere with the vibrations of the frames.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a separator of the described class, the

combination of a vibratory frame; strawsupporting devices mounted onsaid frame; and a set of beaters arranged to project upwardly betweenthe straw-supporting devices; each of said beaters consisting of arotary straight-sided rectangular plate, arranged in such relation tothe frame that its corners will project above the straw-supportingdevices successively as the plate is rotated; said plates being exposedabove such devices at varying distances during the vibration of theframe."

2. In a separator of the described class, the combination of a set ofsuper osed vibratory frames; supporting cross-sha ts mounted onstationary bearings between said frames, and provided with armsconnected with each of the frames; means for vibrating said frames intoand out of proximity with each other; a series of inclinedstraw-supporting toothed bars mounted on each of said frames, with thebars of one frame having raised rear end portions projecting asubstantial distance over the lower front end portions of the bars onthe other frame, in all positions of frame adjustment.

3. In a separator of the described class, the combination of a vibratoryframe; toothed straw-supporting bars arranged in sets on said frame; anda set ofbeatersarranged to project upwardly between the toothed bars ofone of the sets of bars; each of said beaters consisting of a rotarystraight-sided rectangular plate, arranged in such relation to the barsthat its corners will project above the bars successively as the plateis rotated; said plates being exposed above the bars at varyingdistances during the vibration of the frame.

4. In a separator of the described class, the combination of a set ofVibratory frames; toothed straw-supporting bars arranged in sets on eachof said frames; and a set of beaters arranged to project upwardlybetween the toothed bars of one of the sets of bars; each of saidbeaters consisting of a rotary straight-sided rectangular plate arrangedin such relation to the bars that its corners will project above thebars successively as the plate is rotated, and at varying distancesdependent upon the position of the bars; the bars between which saidbeaters extend being arranged in pairs, one on each side of each beaterand in comparatively close proximity thereto.

In testimony whereof I afiix my signature in the presence of twowitnesses.

HENRY M. HARDGROVE.

Witnesses:

LEVERETT 0. WHEELER. JAs. B. ERWIN.

